A privacy advocacy group has swayed Congress to hold a hearing next week into the Department of Homeland Security’s practice of monitoring social networks such as Twitter and Facebook, as well as media reports and organizations, including The Drudge Report.

The Electronic Privacy Information Center (EPIC) recently obtained close to 300 pages of documents, as a result of a Freedom of Information Act lawsuit, detailing the federal agency’s “intelligence gathering” practices on the web.

Among the documents were guidelines from DHS instructing outside contractors to monitor the web for media reports and comments that “reflect adversely” on the agency or the federal government.

As Reuters reported last month, in early 2010 contractors were asked to spend 24 hours monitoring news media coverage on popular websites, including Facebook, Twitter, Hulu, WikiLeaks, as well as news sites including the Huffington Post and The Drudge Report.

The contractors were required to provide the DHS with feedback on any potential “threats and hazards”, as well as “any media reports that reflect adversely on the U.S. Government and the Department of Homeland Security (D.H.S.) ability to prevent, protect and respond, to recovery efforts or activities related to any crisis or events which impact National Planning Scenarios.”

The documents also state that the program should highlight “both positive and negative reports on FEMA, C.I.A., C.B.P., ICE, etc., as well as organizations outside of D.H.S.”